Drilling-machine



(No Model.)

J. H. SMITH.

DRILLING MACHINE.

No. 438,027. Patented Oct. 7, 1890.

JAMES H. SMITH, OF BELLEVILLE, ILLINOIS.

DRILLING- MACHINE.

SPECIFICATION forming part of Letters Patent No. 438,027, dated October 7 1890.

Application filed December 9, 1889. Serial No. 333,127. (No model.)

To all whom it may concern.-

Be it known that 1, JAMES H. SMITH, of Belleville, in the county of St. Clair and State of Illinois, have invented a certain new and useful Improvement in Coal and Rock Drilling Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

This invention relates ohiefi y to the ad justable supportingframe for the driving-engine, the points of novelty being set forth in the claims.

FigureI is a front elevation of the machine.

Fig. II is a side elevation of the machine. Fig. III is a detail front elevation showing one of the clamping-screws with the hand-nut and center sleeve in section. Fig. IV is atop view of the forked end of the brace. Fig. V is a bottom view of the cylinder and clamps, one of the clamps being shown in section to show the form of the trunnion. Fig. VI is an enlarged inner side view of a clamp.

-. The machine is shown in a room or drift underground, of which 1 is the floor, 2 the top, and 3 the wall being drilled.

4: are the uprights of the supporting-frame, said uprights being secured at the lower ends to a cross-bar 5. v

6 is a screw extending downward from the middle of the cross-bar, the end 7 of the screw passing through the crossbar and carrying a nut 8, (see Fig. III,) which secures the screw against rotation.

9 is a hand-nut turning on the screw 6,and having coupled to it a sleeve 10, carrying at its lower end a center or point 11. The sleeve is shown connected to the hand-nut by an ordinary union-coupling 12.

13 is a cross-bar, whose ends 14: have mortises or sockets through which pass the uprights 4.

15 are set-screws working in the ends 14, and whose ends enter the recesses 16 of the uprights, and thus sustain the crossbar 13 at any desired height.

6 is a screw ascending from the middle of the bar 13 and carrying a nut 9 and a sleeve 10, with a pointpr center 11, the construction being similar to the equivalent parts at the lower end of the supporting-frame, except that the cross-bar in the latter case is not movable on the uprights.

The hand-nuts 9 may be turned by handwheels 17 or by other means.

In fixing'the support in place the lower end 11 is first set upon the floor 1 or upon a plank or plate thereon and the standards lifted up into working position. Then the crossbar 13 is slipped up the uprights to the proper position and fixed there by set-screws 15. The upper end 11 is then forced upward by means of the hand-nut 9 against the top 2, or a plank or plate interposed between the end 11. and the top to fix the support in place.

18 is the cylinder of a rotary engine, which maybe driven by compressed air orany other medium entering the cylinder through the hose 19. The engine will not be specifically described, as it forms no part of this invention, and may be made the subject of another patent application or applications.

The trunnions 20 are at the ends of a bar 21, to which the cylinder is attached and which passes between the housing 22 of the drill 23 and the bottom of the cylinder 18. The trunnions have enlarged diameter at the outer ends 20, so as to prevent their endwise movement in the clamp-boxes or clamps 24, said clamps being made to fit the trunnions. (See Figs. V and VI.)

25 is a removable cap fixed to the main part of the clamp by screws 26. The clamps have mortises passing through them, in Which the uprights l fit, and out-side the mortised parts 27 are flanged wrists 28, on which fits the forked end 29 of the brace 30, the wrists resting in slots 31. The free end 32 of the brace is pointed to engage the floor 1 to counteract the rearward pressure of the drill.

33 are set-screws working in the wrists 28, and whose points engage in the depressions 16 of the uprights to fix the cylinder in position.

I claim as my invention 1. In a supporting-frame for drill-cylinders, the combination, with the uprights4 and the cylinder having trunnions, of clamps having mortises through which said uprights pass, said clamps being provided on their inner sides with boxes in which said-trunnions rest and on their outer sides with the wrists28, set-screws passing axially into said wrists and adapted to bear on said uprights, and a brace having ends engaging said wrists 28, substantially as set forth.

2. In a supporting-frame for drill-cylinders, the combination of the uprights 4,a cross-bar 5, rigidly secured to the lower ends of said uprights, the upper cross-bar 13, adjustably secured to said uprights, the downwardly and upwardly projecting screws 6, the nuts 8,1'igidly securing said screws against rotation to said cross-bars 513, respectively. hand-nuts on said screws, pointed sleeves incasing the ends of said screws, and couplings connecting said hand-nuts and sleeves together, whereby the hand-nuts may turn independently of the sleeves, substantially as set forth. a

3. The combination, in a support for drillcylinders, of the uprights 4, clamps adapted toslide on said uprights, engaging the trunnions of the cylinder, fixed and movable cross-:bars 5 13, screws extending, respectively, downward and upward from said crossbars, nuts on said screws,'.and the pointed sleeves 10, coupled to the said nuts, whereby the latter may revolve independently of said nuts, substantially as and for the purposes set forth.

4. The combination, in a support for drillcylinders, of the uprights 4, adjustable clamps on said uprights secured to the drill-cylin der, fixed and movable cross-bars secured to said uprights, screws extending, respectively, downward and upward from said cross-bars, hand-nuts on said screws, the sleeves 10, receiving the ends of said screws and having the points 11, and the couplings 12, connecting said sleeves and nuts together, whereby the latter may be rotated without turning said sleeves, substantially as set forth.

-, 5. The combination, in a support for drillcylinders, of the uprights 4, the cross-bars 5 13, the adjustable points extending from said cross-bars for engaging the floor and ceiling, respectively, the cylinder having trunnions, clamps engaging'the ends of. said trunnions and having. mortises through which said uprights pass, the flanged wrists 28, projecting fromsaid clamps, set-screws proj eating axially into said wrists and engaging said uprights, and the brace 30, having slotted ends engaging with said wrists, substantiallyas setforth.

JASL H. SMITH.

Witnesses: v

HERM. OSTER, E. W. MERZ. 

